org.jruby.ast

Class FlipNode

java.lang.Object

org.jruby.ast.Node

org.jruby.ast.FlipNode

All Implemented Interfaces:

ISourcePositionHolder

public class FlipNode
extends Node

A Range in a boolean expression (named after a FlipFlop component in electronic?).

Field Summary

Fields

Modifier and Type	Field and Description
private Node	beginNode
private Node	endNode
private boolean	exclusive
private int	location

Fields inherited from class org.jruby.ast.Node

EMPTY_LIST

Constructor Summary

Constructors

Constructor and Description
FlipNode(ISourcePosition position, Node beginNode, Node endNode, boolean exclusive, int location)

Method Summary

Modifier and Type	Method and Description
java.lang.Object	accept(NodeVisitor iVisitor) Accept for the visitor pattern.
java.util.List<Node>	childNodes()
private static RubyBoolean	falseIfTrue(Ruby runtime, IRubyObject truish)
Node	getBeginNode() Gets the beginNode.
int	getDepth() How many scopes should we burrow down to until we need to set the block variable value.
Node	getEndNode() Gets the endNode.
int	getIndex() Gets the index within the scope construct that actually holds the eval'd value of this local variable
NodeType	getNodeType()
IRubyObject	interpret(Ruby runtime, ThreadContext context, IRubyObject self, Block aBlock)
boolean	isExclusive() Gets the exclusive.
private static RubyBoolean	trueIfTrue(Ruby runtime, IRubyObject truish)

Methods inherited from class org.jruby.ast.Node

assign, createList, createList, createList, createList, definition, getNodeName, getPosition, isNil, setPosition, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

beginNode

private final Node beginNode

endNode

private final Node endNode

exclusive

private final boolean exclusive

location

private final int location

Constructor Detail

FlipNode

public FlipNode(ISourcePosition position,
                Node beginNode,
                Node endNode,
                boolean exclusive,
                int location)

Method Detail

getNodeType

public NodeType getNodeType()

Specified by:

getNodeType in class Node

Returns:

the nodeId

accept

public java.lang.Object accept(NodeVisitor iVisitor)

Accept for the visitor pattern.

Specified by:

accept in class Node

Parameters:

iVisitor - the visitor

getBeginNode

public Node getBeginNode()

Gets the beginNode. beginNode will set the FlipFlop the first time it is true

Returns:

Returns a Node

getEndNode

public Node getEndNode()

Gets the endNode. endNode will reset the FlipFlop when it is true while the FlipFlop is set.

Returns:

Returns a Node

isExclusive

public boolean isExclusive()

Gets the exclusive. if the range is a 2 dot range it is false if it is a three dot it is true

Returns:

Returns a boolean

getDepth

public int getDepth()

How many scopes should we burrow down to until we need to set the block variable value.

Returns:

0 for current scope, 1 for one down, ...

getIndex

public int getIndex()

Gets the index within the scope construct that actually holds the eval'd value of this local variable

Returns:

Returns an int offset into storage structure

childNodes

public java.util.List<Node> childNodes()

Specified by:

childNodes in class Node

interpret

public IRubyObject interpret(Ruby runtime,
                             ThreadContext context,
                             IRubyObject self,
                             Block aBlock)

Overrides:

interpret in class Node

trueIfTrue

private static RubyBoolean trueIfTrue(Ruby runtime,
                                      IRubyObject truish)

falseIfTrue

private static RubyBoolean falseIfTrue(Ruby runtime,
                                       IRubyObject truish)